A cassette type fan-coil PTC heating device

Abstract

The utility model provides a cassette type fan -coil PTC heating device relates to fan heating device technical field, including fan frame body, and the fan frame body includes a plurality of frame strip of connection, these frame strips make the fan frame body form a closed polygonal shape from the angle of view, and the frame strip is installed with the heater, the utility model discloses an advantage is, set up the fan frame body of polygon, internally is provided with a plurality of heater, and the fan is provided with a plurality of air outlet, and an air outlet corresponds to a heater, and the wind of air outlet blows the heat generated by heater to the wind of fan frame body polygon each direction and sends, make the space fast temperature rise, and the fan frame body is designed as octagon, and the heater is installed in the long side, so that there is greater spacing between every two heaters. This provides a wide heat dissipation space for the heater, effectively reduces the mutual interference of heat between the heaters, and the heat can be more smoothly dissipated to the surrounding environment, greatly improving the heat dissipation effect of the heater.

Description

Technical Field

[0001] The utility model relates to the technical field of fan heating devices, and in particular to a cassette fan coil PTC heating device. Background Technology

[0002] The fan-mounted PTC heating element is a highly efficient and intelligent heating device. Its unique working principle makes it play a vital role in providing a warm and comfortable indoor environment. This device primarily achieves its heating function through PTC heating elements. The PTC heating elements possess excellent electrical energy to heat conversion capabilities; when current passes through them, they can rapidly and efficiently convert electrical energy into heat energy. This rapid heating characteristic allows the fan-mounted PTC heating element to raise the temperature in a short time, meeting the need for rapid indoor heating.

[0003] During the heating process, the heat generated by the PTC heating element is circulated by the powerful fan, ensuring a balanced rise in indoor temperature and preventing localized overheating or underheating. This creates a warm, comfortable, and pleasant indoor environment, making the fan-driven PTC heating unit an indispensable terminal heating device in central air conditioning systems. In cold winters, it works perfectly with central air conditioning systems to effectively compensate for insufficient heat caused by low temperatures. Whether in commercial office buildings and hotels, providing comfortable working and living spaces for business activities and travelers, or in schools, conference rooms, exhibition halls, and other venues, meeting the warmth needs of densely populated areas, the fan-driven PTC heating unit operates stably, continuously supplying warmth to the indoor environment, allowing people to feel the comfort of spring even in the cold winter, and improving the comfort and quality of life and work.

[0004] The technical content disclosed in Chinese patent document (publication number: CN222764003U, patent name: integrated fan PTC heater) is as follows: It includes a fan shroud, which includes an air inlet and an air outlet. A fan impeller is rotatably connected inside the fan shroud, and a heater is installed at the air outlet. The heater includes a heat dissipation component. The fan impeller rotates to generate airflow, and the air passes through the heat dissipation component, carrying away the heat. The advantage of this utility model is that it features a fan shroud with a fan impeller inside. The fan impeller draws air in through the air inlet and sends it out through the air outlet. Because the fan shroud surrounds the drawn-in air, the air can be more concentratedly delivered from the air outlet. After being delivered, the air passes through the heater, thus carrying away most of the heat energy generated by the heater, allowing for full utilization of the heat energy.

[0005] As can be seen from the contents of the above patent documents, the fan PTC heater is only equipped with one heat source and one blower. This configuration restricts the direction of hot air blowing, thus limiting its effectiveness in heating larger spaces. Utility Model Content

[0006] The utility model overcomes the shortcomings of the prior art and provides a cassette fan coil PTC heating device, which is equipped with a polygonal fan frame with multiple heaters inside. The fan has several air outlets, one air outlet corresponding to one heater. The air blown out of the air outlets blows the heat generated by the heaters in all directions of the polygonal fan frame, thus enabling the space to heat up quickly.

[0007] To solve the above-mentioned technical problems, the utility model is implemented through the following technical solution:

[0008] A cassette fan coil PTC heating device includes a fan frame, the fan frame including a number of frame strips that are connected end to end, the frame strips forming a closed polygonal shape when viewed from a top angle, and a heating element is installed on the frame strips.

[0009] A fan is located at the center of the fan frame. The fan has several air outlets, each corresponding to a heater. The air blown out of the air outlets directs the heat generated by the heaters in all directions of the polygonal shape of the fan frame.

[0010] Furthermore, the frame includes a lower frame and an upper frame, with several lower frame sections connected at their ends to form a polygonal lower frame, and several upper frame sections connected at their ends to form a polygonal upper frame;

[0011] The lower polygonal frame and the upper polygonal frame are connected by support columns;

[0012] The polygonal lower frame, polygonal upper frame, and support columns surround the fan and heater.

[0013] Furthermore, a mounting plate is provided on the support column;

[0014] The heater is connected to two adjacent mounting plates at each end.

[0015] Furthermore, a lower connecting seat is also provided on the inner side of the polygonal lower frame.

[0016] Furthermore, the frame strip is a right-angled steel strip.

[0017] Furthermore, the heater includes a heating strip with several fins inserted through it.

[0018] Furthermore, both ends of the fins are bent to one side, so that a flow channel is formed between two adjacent fins.

[0019] Furthermore, the heating strip is also provided with end seats and end sleeves at both ends.

[0020] Furthermore, the polygonal shape of the fan frame is octagonal, with four sides being long sides and the other four sides being short sides, and the long and short sides are arranged alternately, with the heater installed on the long side.

[0021] Compared with existing technologies, the advantages of this utility model are:

[0022] 1. A polygonal fan frame is set up, with multiple heaters inside. The fan has several air outlets, one air outlet corresponding to one heater. The air blown out of the air outlets blows the heat generated by the heaters in all directions of the polygonal fan frame, thus enabling the space to heat up quickly.

[0023] 2. The fan frame is designed in an octagonal shape, with the heaters installed on the long side, resulting in a large gap between each pair of heaters. This provides ample space for heat dissipation, effectively reducing heat interference between heaters and allowing heat to be dissipated more smoothly into the surrounding environment, greatly improving the heat dissipation effect of the heaters. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the utility model and, together with the embodiments of the utility model, are used to explain the utility model. They do not constitute a limitation on the utility model. In the drawings:

[0025] Figure 1 This is a diagram of the PTC heating device for a cassette fan coil unit according to an embodiment of this utility model;

[0026] Figure 2 This is a schematic diagram of the fan frame structure according to an embodiment of the present utility model;

[0027] Figure 3 This is a schematic diagram of the explosion of the heater according to an embodiment of the present invention.

[0028] In the diagram: 1. Fan frame; 101. Lower frame strip; 102. Lower connecting seat; 103. Upper frame strip; 104. Support column; 1041. Mounting plate; 2. Heater; 201. Heating strip; 202. Fin; 203. End seat; 204. End sleeve. Detailed Implementation

[0029] The preferred embodiments of the utility model are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the utility model.

[0030] like Figures 1 to 3As shown, a cassette-type fan coil PTC heating device includes a fan frame 1, which comprises several interconnected frame strips. These strips form a closed polygonal shape when viewed from above. The frame strips are made of right-angled steel bars. This closed polygonal shape design gives the fan frame good integrity and stability. The right-angled steel frame strips are not only strong and able to withstand certain external impacts, but also easy to process and manufacture, resulting in relatively low cost. Furthermore, this combination of shape and material facilitates installation that adapts to the surrounding environment, allowing for convenient placement in different spatial layouts and improving the device's versatility and applicability.

[0031] A heater 2 is installed on the frame; a fan is set at the center of the fan frame 1, and the fan is equipped with several air outlets. Each air outlet corresponds to a heater 2. The air blown out of the air outlets blows the heat generated by the heater 2 in all directions of the polygonal shape of the fan frame.

[0032] The frame includes a lower frame 101 and an upper frame 103. Several lower frame 101s are connected at their ends to form a polygonal lower frame, and several upper frame 103s are connected at their ends to form a polygonal upper frame. Together, they constitute the upper and lower boundaries of the wind turbine frame, and cooperate with the support column 104 to further strengthen the structural strength of the wind turbine frame and provide a reliable support platform for the internal components.

[0033] The support column 104 not only improves the overall strength of the frame but also optimizes the internal space layout to a certain extent. It provides reasonable installation positions for components such as the heater 2 and the fan, making the connection between components more stable, reducing the risk of loosening or damage to components due to vibration or other external forces, and extending the service life of the device.

[0034] The lower polygonal frame and the upper polygonal frame are connected by a support column 104. The lower polygonal frame, the upper polygonal frame, and the support column 104 surround the fan and the heater 2. This structure provides a stable support frame for the entire heating device, surrounds the internal fan and heater 2, protects the internal components from external physical damage, and ensures that the device can operate safely and stably.

[0035] In this embodiment, the fan frame is octagonal in shape, with four long sides and four short sides, arranged alternately. The heater 2 is installed along the long sides. This arrangement provides a large gap between each pair of heaters 2, offering them ample space for heat dissipation. This larger gap effectively reduces heat interference between heaters 2, allowing heat to dissipate more smoothly into the surrounding environment, thus significantly improving the heat dissipation effect. Simultaneously, this arrangement facilitates the installation of the heaters 2. The larger installation spacing provides ample operating space for workers during installation, making accurate positioning and fixation easier, reducing installation difficulty, and improving installation efficiency and quality.

[0036] Furthermore, the octagonal fan frame structure offers greater stability compared to the traditional quadrilateral structure. The multi-faceted octagonal structure allows it to distribute forces effectively through the synergistic action of its edges and corners when subjected to external forces, making it easier to maintain its shape and structural integrity compared to a quadrilateral. This stability is crucial for ensuring the normal operation of all components within the fan frame, effectively reducing potential damage or malfunctions caused by structural instability, extending the overall lifespan of the cassette fan coil unit's PTC heating element, and ensuring its reliability and safety during long-term use.

[0037] A mounting plate 1041 is provided on the support column 104; the mounting plate 1041 provides a reliable mounting and fixing point for the heater 2, ensuring that the heater 2 can be accurately positioned in the fan frame and remain stable during operation, without displacement or shaking due to vibration or other reasons.

[0038] The heater 2 is connected to two adjacent mounting plates 1041 at each end. The heater 2 is connected to the support column 104 through the mounting plates 1041. This connection method is simple and reliable, and facilitates installation and disassembly. At the same time, it can ensure that the heater 2 maintains an appropriate distance from the surrounding components, which is conducive to heat dissipation and air circulation, thereby improving the working efficiency and heat dissipation effect of the heater 2.

[0039] The inner side of the polygonal lower frame is also provided with a lower connecting seat 102, which can be used to connect other related components, such as connecting to the building's installation structure, or providing an installation base for some auxiliary equipment. The presence of the lower connecting seat 102 increases the connection points between the fan frame and the external environment, allowing the entire heating device to be installed more stably in the required location.

[0040] The heater 2 includes a heating strip 201 with several fins 202 inserted through it. The heating strip 201 is the core heating component of the heater 2. It converts electrical energy into heat energy through the principle of resistance heating when current passes through it, thus providing a heat source for the entire PTC heating device for the cassette fan coil unit. It is the key to realizing the heating function and ensures that the device can generate sufficient heat according to the set requirements.

[0041] Both ends of the fins 202 are bent to one side, forming a flow channel between adjacent fins 202. The main function of the fins 202 is to increase the heat dissipation area of ​​the heating strip 201. When the heating strip 201 generates heat, the heat is transferred to the fins 202 through conduction, and then dissipated through heat exchange between the fins 202 and the surrounding air. The formation of the flow channel facilitates smooth airflow between the fins 202, improves heat exchange efficiency, and allows heat to be dissipated more quickly and evenly into the surrounding environment.

[0042] The airflow channel significantly increases the contact area between the heater 2 and the air, greatly improving heat dissipation efficiency. Compared to heating bars without fins 202, it can dissipate heat more quickly, preventing damage from overheating and extending the service life of the heating bar 201. Simultaneously, uniform heat exchange results in a more even heat distribution, more effectively heating the surrounding air and improving the overall heating effect and stability of the device. Furthermore, the fins 202 also enhance the mechanical strength of the heater 2 to some extent, making its structure more robust.

[0043] The heating strip 201 is also equipped with end seats 203 and end sleeves 204 at both ends. The end seats 203 are mainly used to connect the heating strip 201 to other components, such as the mounting plate 1041, to fix the position of the heating strip 201 and ensure that the heating strip 201 is firmly installed in the fan frame and will not shift due to vibration or other reasons. The end sleeves 204 have multiple functions, such as protecting the ends of the heating strip 201 to prevent damage to the ends of the heating strip 201 from external factors; at the same time, they participate in electrical connections or other related connections to ensure good connection between the heating strip 201 and external circuits or components.

[0044] Finally, it should be noted that the above are merely preferred embodiments of the utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the utility model should be included within the protection scope of the utility model.

Claims

1. A cassette fan coil PTC heating device, characterized in that, Includes a fan frame (1), which includes several frame strips connected at the ends, so that the fan frame forms a closed polygonal shape when viewed from above, and a heater (2) is installed on the frame strips. A fan is provided at the center of the fan frame (1). The fan has several air outlets, and each air outlet corresponds to a heater (2). The air blown out of the air outlets blows the heat generated by the heater (2) in all directions of the polygonal shape of the fan frame.

2. The PTC heating device for a cassette fan coil unit according to claim 1, characterized in that, The frame includes a lower frame (101) and an upper frame (103). Several lower frame (101) are connected at their ends to form a polygonal lower frame, and several upper frame (103) are connected at their ends to form a polygonal upper frame. The lower polygonal frame and the upper polygonal frame are connected by a support column (104); The polygonal lower frame, polygonal upper frame, and support column (104) surround the fan and heater (2).

3. The PTC heating device for a cassette fan coil unit according to claim 2, characterized in that, An mounting plate (1041) is provided on the support column (104). The heater (2) is connected to two adjacent mounting plates (1041) at both ends.

4. The PTC heating device for a cassette fan coil unit according to claim 3, characterized in that, A lower connecting seat (102) is also provided on the inner side of the polygonal lower frame.

5. A cassette fan coil PTC heating device according to any one of claims 1 to 4, characterized in that, The frame strip is a right-angled steel strip.

6. A cassette fan coil PTC heating device according to any one of claims 1 to 4, characterized in that, The heater (2) includes a heating strip (201) with several fins (202) inserted on it.

7. A cassette fan coil PTC heating device according to claim 6, characterized in that, Both ends of the fin (202) are bent to one side, so that a flow channel is formed between two adjacent fins (202).

8. A cassette fan coil PTC heating device according to claim 7, characterized in that, The heating strip (201) is also provided with end seats (203) and end sleeves (204) at both ends.

9. A cassette fan coil PTC heating device according to any one of claims 1 to 4, characterized in that, The fan frame (1) has an octagonal polygonal shape, with four sides being long sides and the other four sides being short sides. The long sides and short sides are arranged alternately, and the heater (2) is installed on the long side.

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